A groundbreaking cold air intake featuring the patented Banks Air Mass Control Module. The electronic device allows our engineers to use the Banks SuperTube, a massive free-flowing intake tube, larger than stock and all competitors.?No other cold air intake even comes close in size or airflow. Adds power, sharpens turbo response, and improves fuel economy. Beats stock and competitors in mass airflow, pressure retention, and dirt capacity. Provides a strong induction note. Brand new for the 2020-2023 Duramax L5P platform, the Banks Ram-Air intake is a game-changer. With 2020 and up Duramax engines, GM has further tightened the allowable range for induction tuning.